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A hockey puck moving at 34m/s slams through a wall of snow 40cm thick. It emerges moving at 17m/s.
A) Assuming constant acceleration, find the time the puck spends in the snow.
B) Assuming constant acceleration, find the thickness of a snow wall that would stop the puck entirely.
An electric vehicle starts from rest and accelerates at a rate of 1.9 m/s2 in a straight line until it reaches a speed of 28 m/s. How far does the vehicle move from start to stop
After a day of testing race cars, you decide to take your own 1580kg car onto the test track. While moving down the track at 10.0 m/s, you uniformly accelerate to 28m/s in 10 s. What is the average net force that you have applied to the car throug..
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, What is the true distance between the points
A magnifying glass has a focal length of 8cm. How close to an object do you need to place the magnifying glass, What type of image is this and what is its magnification
A motor is designed to operate on 131 V and draws a current of 12.2 A when it first starts up. What is the resistance of the armature coil
A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5N. How much work does the string do on the boy
The infamous chicken is dashing toward home plate with a speed of 5.80 while he decides to hit the dirt. The chicken slides for 1.1, just reaching the plate as he stops (safe, of course).
A 80 g, 33-{rm cm}-long rod hangs vertically on a frictionless, horizontal axle passing by its center. A 11 g ball of clay traveling horizontally at 2.5 m/s hits and sticks to the very bottom tip of the rod.
An automobile's wheels are locked as it slides to a stop from an initial speed of 30.0 m/s. how long does it take the car to stop
A ball of mass 0.65 kg is fired with velocity 120 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
A suitcase falls out of an airplane which is 400 meters above the ground. How fast is it moving when it reaches the ground
A light ray is incident upon a plane interface between two materials. what is the refracted angle (in degrees) in that material
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